Railway road-bed.



A. M. BUNN. RAILWAY ROAD BED.

APPLICATION FILED JAN- 7,1915- RENEWED JUNE 5.1916.

Patented Dec. 26, 1916.

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' TATS PATENT FI IQ.

ASA. M. BUNN, OF KANSAS CITY, MISSOURI, ASSIG-NOB. OF ONE-HALF T FREDERICK J. CLOSE, OF KANSAS CITY, KANSAS.

RAILWAY ROAD-BED.

Application filed January 7, 1915, Serial No. 929. Renewed June zen of the United States, residing'at Kansas City, in'the county of Jackson and State of 'Missouri,have invented av certain new and useful Improvement in RailwayRoad- Beds, of which the following is a specification.

My invention relates to railway road beds.

The object of my invention is to provide a railway road bed from which the ordinary wooden cross ties are eliminated, and which will have greater durability, will require less repairing, and which will possess greater resiliency than the usual road bed which employs wooden cross ties.

improvements in In the accompanying drawing which illustrates the preferred embodiment of my invention, Figure 1 is a cross sectional view of my improved road bed. Fig.2 is a plan view of the same shown partly broken away.

Similar reference characters designate similar parts inthe different views.

In the preferred form of my invention, a holding trench, preferably having a rigid bottom and side walls and composed of a solid material, such as concrete material 1,

is provided. Upon the bottom of the trench 1 is placed a bec of sand 2, upon which rests a foundation 3, which is, preferably, of a resilient material, such as asphalt or other solid bituminous material. Upon the foundation 3 are supported horizontal cross ties, preferably comprising flat steel plates 1 having upwardly and inwardly turned outer ends 5 which respectively engage the side walls of the trenchl, whereby lateral movement of the cross ties upon its foundation is prevented relatively to the trench. Upon the cross ties 4 are mounted the usual T rails 6, the outer portions of the bases 7 of which are respectively overlapped and em-' braced by the flanges or upwardly and inwardly turned ends 5 of the cross ties 4. Clamping plates 8 are mounted upon the cross ties 4 and respectively overlap the joints 9 between said cross ties. The outer ends of the clamping plates 8 overlap and embrace respectivelyv the inner portions of the bases 7 of the rails 6. Vertical bolts 10 extend through the cross ties 4 and the clamping plates 8, said bolts being provided with nuts 11, by means of which the clamping plates 8 are firmly secured to the cross- Specification of Letters Patent.

Patented Dec. 26, 1916.

5, 1916. Serial No. 101,869.

ties 4. Upon the cross ties 4 and clamping plates 8, between the rails 6 may be placed a bed of sand 12 upon which may be mounted paving blocks or stones l3. Between the side walls of the trench .1 and the outer sides of. the rails .6.may.beplaced asphaltic material 14:.

In laying my improved roadbed, the concrete trench l is molded between suitable forms upon the graded right ofway, or in a suitable ditch cut in a street, when the road I bed is laid in the streetofa city. After the concrete has sufficiently hardened, the bed of sand 2 is placed in the trench l, and upon this sand bed is placed the foundation 3, which may be tamped asphaltic material, the upper side of the foundation being suitably surfaced. The metal base plates or cross ties 4 are then placed edge to edge within the trench 1 upon the asphaltic foundation 3, following whichthe rails 6 are slipped into position upon'the cross ties 4 with the inwardly and upwardly turned ends 5 thereof overlapping and embracing the outerportions of the bases 7 of said rails. The clamping plates 8 are then mounted upon the cross ties 41 in positions in which the joints 9 will be overlapped, the ends of the clamping plates 8 being arranged to embrace and hold the inner portions of the bases? of the rails 6, the bolts 10, which have been previously inserted, heads down, through the cross ties 4:, being inserted through holes provided therefor in the clamping plates 8. The nuts 11 are then mountedon the bolts 10, so as to tightly clamp the plates 8 to cross ties 4:, thereby securely holding the rails 6 in their proper positions.

The width of the trench 1 is such that the cross ties 4L neatly fit between the walls thereof, thereby holding the cross ties, and with them the rails 6 and clamping plates 8 from lateral movement relatively to the trench. The trench also securely retains the asphaltic foundation 3 and the sand bed 2 in their proper positions. The clamping plates 8 in addition to their function of securing the rails to the cross ties, also serve to strengthen and make more rigid said cross ties, and serve also to seal the joints 9-between the cross ties, thereby preventing the passage downwardly therebetween of moisture and also preventing the weight placed on the rails from forcing any of the asphaltic material 3 upwardly between the cross ties 4.

After the rails have thus been mounted in and secured in their appropriate positions,

lienlcy, much more than that which is possessed bywoodsuflic iently hard to render it suitable for service as railroad ties. The final residue from the manufacture of crude oil, known in the commercial worldunder differenttitles, such as. Sarco 2LIlCl,.T6XlCO serves admirablyas a bituminous foundation for the metallic cross ties which are employed in my road bed construction. The

materials above named are impervious to ,moistureand are, therefore, not affected by freezing weather.

By fitting the cross ties/l within a trench Qivhich holds them from lateral movement,

the danger oftherails spreading, and the liability to wrecks due to this cause, is

wholly,eliminated in my improved road bed.

. I do not limit my invention to the structure herein described; and illustrated, as modifications, within'the scope of the appended claims, may be made without departing from thespirit of my invention.

What I, claim is V 1. In a railway roadbed, the combination .with a holdingtrench, of a resilient foundation. in saidtrench, cross ties mounted on sa d. foundation and, hav ng thelr ends engagedby theside walls of said trench, and rails-supported by and secured to said cross ties.

2. In a railway rod bed, the combination with a holding trench, of a resilient foundation in. said trench, cross tiesmounted on said foundation and held by the side walls ,ofsaid trench from lateral movement in said trench and provided with. upwardly and inwardly turnedends, and rails supported by said;cro ss,ties and having their bases overlapped at the outer sides thereofby said inwardly turned ends.

3. In a railway road bed, thefcombinationwith a holdingtrench, of a bituminous foundation in said trench, cross ties mountto, said cross ties.

ed onsaid foundation and held from lat. ,eral, movement by the side walls of said trench, andrails supported by and secured 4. In a, railway. road bed, the combination I with a holdingtrench, of afoundation of as- :phaltic material in said trench, cross ties mountedonsaid foundation and held from lateral movement bv the side Walls of said trench, and rails supported bv and secured to said cross ties.

5. In a railway road bed, the combination with a holding trench, of a resilient foundation in said trench, cross ties mounted on said foundation and held by the side Walls of said trench from lateral movement relative thereto, rails supported by and secured to said cross ties, and clamping plates secured to said ties and respectively overlapping the joints between said ties and having their outer ends respectively overlapping and embracing the bases of said rails.

6. In a railway road bed, the combination with a holding trench, of a resilient foundation in said trench, cross ties mounted on said foundation and held'by the side walls of said trench from lateral movement relative thereto, and provided with inwardly and upwardly turned ends, rails supported" by said cross tiesand having the outer-portions of their bases respectively overlapped and embraced by said upwardly turnedends,

and clamping plates secured to said ties and,

respectively overlapping the joints 1 between said ties and having their outer 'endsrespectively overlapping 'andembracing the inner portions of theba'sesof said rails.

7 In a railway road bed, the combination with a holding trench, of a foundation of bituminous material in said trench, cross ties mounted on said foundationand held by the side walls of said trench from lateral movement relative thereto, rails supported by and secured to said cross ties, and clamp ing plates secured to said ties and respectively overlapping the joints between said ties andhaving theirouter ends respectively overlapping and embracing the bases of said ral s.

8. In a railway roadbed, the combination with a holding trench, of afoundation of asphaltic material in said trench, cross ties mounted on said foundation and held by the side walls of said trench from lateral movement relative thereto, rails, supported by and secured to saidcross ties, andclamping plates secured tosaid ,t1es andrespectlvely overlapp ng the oints between sald'tles and having theirouter ends respectively over ing their outer ends respectively overlapping and embracing the inner portions of the bases of said rails.

10. In a railway rod bed, the combination with a holding trench, of a foundation of asphaltic material in said trench, cross ties mounted on said foundation and held by the side walls of said trench from lateral movement relative thereto, and provided with inwardly and upwardly turned ends, rails supported by said cross ties and having the outer portions of their bases respectively overlapped and embraced by said upwardly turned ends, and clamping plates secured to said ties and respectively overlapping the joints between said ties and having their outer ends respectively overlapping and embracing the inner portions of the bases of said rails.

In testimony whereof I have signed my name to this specification in presence of two subscribing wltnesses.

ASA M. BUNN. Witnesses:

WARREN D. HoUsE, HELEN HOUSE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents. Washington,D 0. 

